Home / 1,257,951.65-1,887,229.11-405,103.67

Finding the Fourth Proportional to 1,257,951.65, 1,887,229.11 and 405,103.67

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Solution

The fourth proportional to 1,257,951.65, 1,887,229.11 and 405,103.67 is: 607,752.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,951.65 : 1,887,229.11 = 405,103.67 : x
  2. Step 2: Convert to fraction form
    1,257,951.65/1,887,229.11 = 405,103.67/x
  3. Step 3: Cross multiply
    1,257,951.65x = 1,887,229.11 × 405,103.67
  4. Step 4: Simplify right side
    1,257,951.65x = 764,523,429,155.69
  5. Step 5: Solve for x
    x = 764,523,429,155.69/1,257,951.65
  6. Step 6: Final answer
    x = 607,752.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.